Circular-knitting machine



2 Sheets-Sheet 1.

(No Mogiel.) I

A. 8211. T OMPKINS.

CIRCULAR KNITTING MACHINE.

No. 360,931. Patented Aim 12, 1887,

WITNESS m.

-- v MMM BY W ATTORNEY (No Model Y 2 Sheets-Sheet; 2.

A. & I. TOMPKINS.

CIRGULAR KNITTING MACHINE.

No. 360,931; Patented Apr. 12, 1887.

UNITED STATES ALBERT TOMPKI NS AND IRA'TOMPKINS, OF TROY, NE\V YORK.

CIRCULAR-KNITTING MACHINE.

ZBFECXFICATION forming part of Letters Patent No. 360,931, dated April 12, 1

Application filed July 1, 1886. Serial No. 206,756, (No modeL) To all whom it may concern:

Be it known that we, ALBERT ToMrKINs and IRA TOMPKINS, of the city of Troy, county of Rensselaer, State of New York, have jointly invented a new and useful Improvement in Circular-Knitting Machines, of which the following is a specification.

Our invention relatesto that part of a circular 0r rotary knitting-machine that is used to attach thereto the burr-holder and presserwheel standards. As circular or rotary knitting-machines have heretofore been generally constructed, atable-plate was arranged around the vertical shaft of the machine below the cylinder to receive the burr-holder and presserwheel standards. This table-plate was radially slotted to receive the standards, the lower ends of the latter being passed through the slots to rest on a rim formed on the standard,with the lower end of the latter, where passed through the slot and below the table, being adapted to receive a nut, by which said standard was kept in position. As thus made the relative position of the burrholder and presser-wheel standards was arbitrarily limited to that of the slots, and

where the machines were required to knit dif-- fering kinds of work that called for a change in the relative position of the burr-holders and presser-wheels, that could not be had by a slotted plate adapted for ordinary work, then the table-plate had to be changed, there being required several kinds of plates having different arrangement of radial slots to condition a knitting-machine for different kinds of work. To adapt a knitting-machine for any radial arrangement and location of burr-holders and presser-wheels, and without the use of a series of the table-plates, is the object of our invention.

Accompanying this specification, to form a part of it, there are two plates of drawings containing four figures illustrating our invention, with the same designation of its parts by letter reference used inall of them. Of these illustrations, Figure 1 shows a side elevation of a part of a knitting-machine with our improved mechanism for attaching aburr-holder or presserwheel standard applied thereto. Fig. 2 illustrates a plan view of the mechanism as detached from the table,with a single'burrholder orpresser-wheel holdingplate attached. Fig. 3shows an enlarged section taken through the line a0 w of Fig. 2, and connectedly a side elevation of one of the standards by which the mechanism is supported on the machinetable. Fig. 4 illustrates in perspective one of the slotted plates forming a part of our invention.

The several parts of the mechanism containing our invention and those of a circular or rotary knitting machine with which it connects are designated by letter reference, and the function of the parts is described as follows:

The letter T indicates the table on which our mechanism is supported; S the shaft of the knitting-machine; 0, its cylinder; N its needles; W, the web, and A a burr-holder or presser wheel standard, made with the threaded end 15 adapted to receive a nut, 71,.

The letter R indicates a ring formed with an annular T-shapcd groove, a, in its upper face. The letter S designates the neck of this groove, and O a passage-way made in the bottom of said ring and extending upwardly into the annular groove, for the passage of a bolthead, and as designated in part by a dotted line at Fig. 2.

The letter P designates a plate made with a longitudinal slot, S"; B, a bolt, which is inserted in the annular groove a through the opening 0, and is arranged in said groove with its threaded stem projected through the slot S in the plate P, and is provided with a threaded nut, N, which is made broad enough to set over the edges of the plate, and, being turned down, serves to clamp the plate P to the ring.

The letters E indicate ears on the inner rim of the ring R, and D standards, to the tops of which the said ears are adapted to connect by means of nuts 12 the standards being attached to the table T by any well-known means, so as to secure the connected ring R in a position concentric with the knittingmachine cylinder.

The parts thus illustrated and described are attached and made applicable as follows: The slotted plate P, of which any number may be employed that the circumference of the ring R will receive, is adapted to have the lower end of the burnholder or presser-wheel standard passed through it, and to be secured therein by a nutyn, on the bottom end of the standard, which nut engages with the under side of said slotted plate at each side of the slot S, and by a flange or ring, 9', on the standard, which flange is wide enough to straddle the said slot S and rest on the top of said plate P at each side of the slot, and by which 00111100- tion the burr-holder or presser-wheel standard may be secured in the slot S of the plate P at various points between the ends of the latter. lhe slotted plate P is adjustably attached to the ring R by means ofthe bolt B, the head of which is passed up through the opening 0, and the bolt is then moved around with its head h in such part of the annnlargroove a as it may be desirable to secure the bolt and slotted plate to the ring, the head of the bolt at its edges and where wider than the slot S engaging with the interior upper surface of the annular groove a and the shank of the bolt in the slot S in which position the plate P is then passed on over the bolt through the slot 8' and the nut N screwed on to the bo1t,so as to straddle the slot- S" and connect the slotted plate to the ring.

As thus made any number of slotted plates like that indicated at P may be applied by means of nuts or bolts to the ring R that the circumference of the annular groove a will contain, and they maybe secured at any point in the cirenm ference of the said ring relatively to the machine-cylinder that may be desired, said ring being arranged on the inachinetable concentrically to the said cylinder. As thus made and applied the burr-holder or presser wheel standards may be adjnstably attached to the said slotted plates and the latter adjustably attached tothe ring R,and all the ad van tages which could be had by a series of tableplates are obtained without the inconveniences of the latter,

Having thus described our invention, what we clain1,at1d desire to secure by Letters Patcut, is

1. The combination of the ring R, formed with the annular Tshaped groove a and opening 0, with the plate P, formed with the slot 8*, and the bolt B, provided with the nut N, all constructed and arranged substantially as and for the purposes specified.

2. The combination, with the cylinder of a knitting-machine and supports arranged concentric thereto, of the ring, R, arranged on said supports and iormed withanannularT-shaped groove, a, in its upper face, and opening 0, the plate P, formed with slot S the bolt B, and

nut N, the standard A, made with the base k ring 1' and threaded stem t, and the fasteningnut n, all substantially as described.

Signed at Troy, New York, this 15th day of October, 1884, and in the presence of two witnesses whose names are hereto written.

ALBERT TOMPK INS. IRA TOMPKIN S.

X-Vitnesses:

CHARLES S. RRINTNALL, WILLIAM Cox. 

